step-down voltage converter and step-up voltage converter

1. Product Introduction:

1. The 35 kV class oil-immersed power transformer serves as the main equipment for power transmission and distribution in 35 kV voltage networks. Using the principles of electromagnetic induction, it steps down high-voltage power from 35 kV to the low voltages of 10 kV or 0.4 kV required by users. This device is widely used in regional substations, large industrial parks, wind power facilities, photovoltaic power stations, hydropower projects, and critical power supply systems for industrial and mining enterprises.
   It offers significant advantages, including low energy losses, minimal noise levels, high reliability, and an extended service life, making it the preferred equipment for large-scale outdoor power sources. It is especially suitable for projects requiring extremely high stability of continuous power supply.

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   2. Main Technical Parameters (Customizable)

3. Product type: Three-phase double-winding or three-phase three-winding Rated capacity: 50 kVA – 63,000 kVA Voltage Regulation mode: On-load tap-changing, off-circuit, or motorized off-circuit voltage on the high-voltage side Cooling mode: ONAN / ONAF Connection symbol: Dyn11 / YNd11 (industry standard) Energy efficiency level: High-efficiency energy-saving transformer Standards: GB 1094, IEC 60076

5. Core material configuration Core: High-permeability grain-oriented silicon steel sheet, with low no-load loss and low noise level Windings: High-purity oxygen-free copper windings, with high mechanical strength and excellent short-circuit resistance Oil tank: Sealed structure, leak-proof, moisture-proof, and long-term maintenance-free

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7. 3. Application scenarios

8. 1. Large-scale industrial and energy bases • Main applications: steel plants, oil refineries, chemical plants, and large-scale smelting enterprises.
   • Demand matching: high capacity, high reliability, and long service life to ensure continuous uninterrupted production.

9. New energy power stations • Main applications: wind farms, photovoltaic power stations, hydropower stations, and biomass power stations.
   • Demand matching capability: Operating as a step-up transformer, it boosts low-voltage power to 35 kV for grid integration, possessing exceptional interference resistance and weather adaptability.

10. Urban power grids and regional substations • Main applications: 35 kV regional substations, large urban complexes, office building clusters, and high-speed railway stations.
    • Demand alignment: As a regional energy hub, stable power distribution with minimal losses and low noise is a core requirement.

11. Infrastructure and primary applications in mining/industrial industries: railway traction stations, airports, ports, mines, and pumping stations for oil and gas pipelines in remote areas.
    • Demand alignment: Stable outdoor operation, resistance to windblown sand and extreme cold, ensuring long-term power supply for remote areas and large-scale infrastructure.

12. Rural power grids and urban-rural construction • Primary applications: rural power grid upgrades, county-level central substations, and large-scale industrial zones in townships.
    • Demand alignment: High cost-effectiveness and low maintenance costs, capable of meeting power transmission needs for large areas.